Diagnostic cytology has recently enjoyed increased attention and significance in modern research. Essential information on latest developments in methods and applications in cytology is provided by this book. Chapters review methodological advances, such as in cancer detection, and explore potential relationships to molecular biology. Also discussed are: viral infection, fundamentals of quantitative methods, and the revolutionary role of immunocytochemistry in diagnostic cell typing. The new insights offered by transmission and scanning electron microscopy into cellular structure and function are discussed, and the connections between cytology and histology are highlighted. Epidemiology in connection with cytology is incorporated in special reports. The current developments described here will become routine methods of the cytology of tomorrow.

In this issue of Surgical Pathology Clinics, guest editor Dr. Alain Borczuk brings his considerable expertise to the topic of New Frontiers in Thoracic Pathology. Top experts provide new insights into emerging technology that will affect thoracic pathology in both neoplastic and non-neoplastic disease. This issue covers updates in the utilization of molecular testing in surgical pathology of lung cancer and mesothelioma, highlights uncommon tumors in the differential of common tumors, and shares new approaches to non-neoplastic disease, including new clinicopathologic entities. Contains 13 relevant, practice-oriented topics including silicosis and non-asbestos associated pneumoconiosis; pathology of COVID-19 lung disease; salivary gland type lung cancer; microsatellite instability, mismatch repair and tumor mutation burden in lung cancer; artificial intelligence in lung pathology; and more. Provides in-depth clinical reviews on new frontiers in thoracic pathology, offering actionable insights for clinical practice. Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field. Authors synthesize and distill the latest research and practice guidelines to create clinically significant, topic-based reviews.

The first Symposium on ~iammary Pathology organized by the International Society against Breast Cancer was held in Paris on December 3-7, 1979. The programme was divided into sections with morning lectures on current topics in mammary pathology given by invited speakers, followed by discussions, and, in the afternoon, emphasis on practical work, such as slide seminars, technical explanations of tissue and cell preparations for histology, cytology, electron microscopy and tissue culture work. The morning sessions were held at the Racing Club of France, 5 rue Eble, 75007 Paris and the organizers of the meeting wish to thank the RCF andits President, Mr. R. Menard for their kindness and generous help in the arrangement of the symposium. The afternoon workshops too~ place at the Institut de Pathologie et de Cytologie Appliquee {Director Professor J. de Brux) , rue des BeIles Feuilles, Paris XVI, with the help of staff members from this Institute. The editors of the Proceedings of the Symposium wish to thank the contributors for their help in providing manuscripts for publication and for complying with the instructions given by the editors and the Plenum p;ubli shing Company. Financial supports providea by the Ligue Nationale Fran9aise contre le Cancer and the FEGEFLUC are gratefully acknowledged. It is hoped that the present volume will provide stimuli for future work on clinical and basic research in mammary pathology.